Dynamic behavior of a scroll compressor. (Dynamic analysis)

Modeling of Hermetic Scroll Compressors: Model Development

“…Hayano et al (1988) identified that frictional losses occur at ten different locations inside the scroll compressor and calculated the frictional losses at major locations. Ishii et al (1986Ishii et al ( , 1987Ishii et al ( , 1988aIshii et al ( , 1988bIshii et al ( , 1988cIshii et al ( , 1990Ishii et al ( , 1992 presented a series of comprehensive studies on the dynamic behavior of scroll compressors that form the basis for the model utilized in the current work. The model is used to determine mechanical/frictional losses within the orbiting scroll and Oldham coupling.…”

“…A brief description and summary of the equations used in this model are given in the following. More details can be found in Ishii et al (1988aIshii et al ( , 1988bIshii et al ( , 1988c. …”

“…Gas forces acting on the orbiting scroll can be reduced to a tangential force F t , which acts against the clockwise orbiting motion, the radial force F r , and the clockwise moment M o , which acts on the orbiting scroll center O m , as shown in Figure 5 (Ishii et al 1988a). They can be calculated by integrating the pressure force along the inner/outer fixed and orbiting scrolls.…”

“…They can be calculated by integrating the pressure force along the inner/outer fixed and orbiting scrolls. (Ishii et al 1988a) shows all forces and moments acting on the orbiting scroll. The reaction forces produced by the crank pin on the scroll center O m are S x and S y .…”

“…Compressor modeling has emerged from the different methods used to investigate compressors as a research field of its own. Practically every individual process occurring in a scroll compressor has been modeled, such as the dynamics of the moving parts including frictional losses (Ishii et al 1986(Ishii et al , 1987(Ishii et al , 1988a(Ishii et al , 1988b(Ishii et al , 1988c(Ishii et al , 1990(Ishii et al , 1992(Ishii et al , 1994Hayano et al 1988), the compressor process (DeBlois and Stoeffler 1988;Yanagisawa 1990;Nieter 1988;Kim 1998;Caillat et al 1994), heat transfer between the refrigerant and compressor parts (Jang and Jeong 1999;Wagner and Marchese 1992;Bush and Elson 1988;Suefuji et al 1992), internal flow and leakage (Puff and Krueger 1992;Suefuji et al 1992;Tojo et al 1986;Zhu et al 1992;Yong 1994), oil transport and distribution (Drost and Quesada 1992) and pulsating flow at suction and discharge (Nieter and Gagne 1992).…”